211450211401493 has 2 divisors, whose sum is σ = 211450211401494. Its totient is φ = 211450211401492.

The previous prime is 211450211401393. The next prime is 211450211401511. The reversal of 211450211401493 is 394104112054112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190633193772004 + 20817017629489 = 13806998^2 + 4562567^2 .

It is a cyclic number.

It is not a de Polignac number, because 211450211401493 - 2⁴⁴ = 193858025357077 is a prime.

It is a super-2 number, since 2×211450211401493² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211450211401393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105725105700746 + 105725105700747.

It is an arithmetic number, because the mean of its divisors is an integer number (105725105700747).

Almost surely, 2^{211450211401493} is an apocalyptic number.

It is an amenable number.

211450211401493 is a deficient number, since it is larger than the sum of its proper divisors (1).

211450211401493 is an equidigital number, since it uses as much as digits as its factorization.

211450211401493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 211450211401493 in words is "two hundred eleven trillion, four hundred fifty billion, two hundred eleven million, four hundred one thousand, four hundred ninety-three".